I have a DVD-player (standalone player from Philips, called DVD963 SA) where the powersupply has died. This is a great player and I want to fix the powersupply, but they (Philips) won't sell replacement-parts, and a new powersupply is 1/4 of the cost of the whole unit.
So, my question is this, is it possible to read the schematics and figure out approx. max. amp on the various voltage-ratings the PSU supplies to the DVD?
(I have the service manual with the schematics)
In advance, thanks!
-- Thomas
If you have the service manual,and schematics...why not just fix the existing supply? Maybe use some better quality filter capacitors while you're at it..that's the usual cause of death,IME.. (commonly the original caps have a high ESR,get leaky,dry up and puke/die after a while.)
The IC used as part of the original PSU is impossible to find. :| (So, yes, this was my idea until I found out that the IC is one of the components that seems to have gone faulty).
-- Thomas
Ahh... I C (pardon the pun!)
I wonder if you could 'retrofit' another IC in there?..Maybe build it on a small "daughter-card" that could fit into the original IC's footprint. I'm assuming it's one of the small 8-pin SMPS controller IC's?
Not available on mouser.com or digikey.com?
You're sure you traced the fault to that one part?
Another option: build your own power supply (external?) and hope for the best...
Michael
The IC is called TY72011P2, and is a 14-pin IC, the signals seems to be HV, NC1, DEMAG, FB, CT, CVP, NC2, NC3, NC4, GND, ISENSE, DRIVE, VCC and NC5. So, in reality, it's just 9 pins that's used on the IC. But, as I said, it's impossible to find anywhere.
Do you know what the IC does?
How should I go forward with this, if I want to design my own PSU-unit, for instance? I mean, I need to figure out what the max. load on the various voltage-ratings is supposed to be, and this is what is stopping me right now.
-- Thomas
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